09/15/94
HANFS Helpful Information
SPECIAL NOTICES
Information in this document is correct to the best of our
knowledge at the time of this writing. Please send feedback
by fax to "AIXServ Information" at (512) 823-4009.
Please use this information with care. IBM will not be
responsible for damages of any kind resulting from its use.
The use of this information is the sole responsibility of
the customer and depends on the customer's ability to eval-
uate and integrate this information into the customer's
operational environment.
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| |
| NOTE: The information in this document has NOT been |
| verified for AIX 4.1. |
| |
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ABOUT THIS DOCUMENT
This document contains tips for setting up HANFS and
resolving HANFS problems.
SOURCES OF INFORMATION FOR HANFS SETUP
o Communication Concepts and Procedures, GC23-2403,
Chapter 12 -- This document can be ordered from your
local branch office. Chapter 12 has a complete
description of how to install HANFS on your system.
o File /usr/lpp/hanfs/lpp.README -- This file includes all
changes that may apply to the chapter mentioned above.
It also includes any specific instructions for your AIX
OS level and HANFS LPP. It is important to refer to
this document if you experience problems setting up
HANFS.
CASES YOU MAY OBSERVE DURING CONFIGURATION
o Cannot see the volume group on the primary, on the
backup, or on both at the same time -- Make sure you
have the same major number on both the primary and
backup. Run "ls -li /dev/HA1", where HA1 is the shared
volume group, on both the primary and the backup. The
"lvlstmajor" command will show you the next free major
numbers on a system; you may need to use it on both
systems to help you select the major number.
o Cannot select the integrated Ethernet card from HANFS
SMIT menu -- Make sure you have PTF U407099. (You can
check for this PTF on your system with "lslpp -ah
U407099".) You may see this problem if you are using
HANFS Helpful Information 1
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the integrated Ethernet card on your system (i.e., RISC
System/6000 model 340).
o Cannot pick up all external disks in your HANFS string
-- Make sure you set a unique ID for each disk,
including the internal disks on both primary and backup.
Choose an ID in the range 0-5 for external disks. The
"lsdev -Cc disk" command will list disks and their IDs.
HANFS requires SCSI adapters with part number 31G9722
and adapter-to-device cables with part number 00G0959.
Running HANFS with any other SCSI adapter cables can
cause serious errors.
o The backup cannot take over -- Make sure HANFS is
running on the backup and the SLIP is working. The
"lssrc -g hanfs" command will show status of hanfsd.
o SLIP is not working -- Make sure you are selecting a
valid tty for SLIP. SLIP must use one of the two serial
ports on the system. To configure SLIP, run commands
similar to the following example:
ifconfig sl0 down
ifconfig sl0 detach
ifconfig sl0 9.3.20.61 9.3.20.60 netmask 0xffffff00 up
slattach tty0
In the above example, 9.3.20.61 is the source, 9.3.20.60
is the destination, and 0xffffff00 is the netmask. Set
values specific to your configuration. You must also
follow the same process for the other machine.
CASES YOU MAY OBSERVE AFTER HANFS IS RUNNING
o HANFS cannot redirect routing for the primary adapter
when HANFS is brought up on the primary -- You will need
APAR IX35223. (You can check for this PTF on your
system with "lslpp -A IX35223".)
o The "startsrc -g hanfs" command reports that HANFS
started when it really did not -- This indicates an
invalid configuration. Run "smit hanfs" and check your
configuration parameters under "Configure HANFS". Also
make sure the hostname on the machine is the same as
that in the /etc/hanfs file.
| o The hanfs.log file contains the error message "hanfsd:
| Back-level SCSI adapter(s) detected." If they are using
| SCSI-2 Fast and Wide, APAR IX42625 must be installed.
| The APAR contains the code necessary to enable HANFS to
| run with SCSI-2 Fast and Wide adapters.
o Error code 231 is displayed in the HANFS log file -- One
or more SCSI adapters are down level. Use a SCSI
adapter with part number 31G9722.
o Error code 233 is displayed in the HANFS log file --
Cannot get valid configuration information because
alternate hardware address was not set properly. On the
BACKUP server, go to HANFS/configure devices/ network
HANFS Helpful Information 2
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adapter, and choose the adapter that will back up the
primary adapter. Make sure you have the hardware
address of the primary adapter as an alternate address.
Also, make sure the same is done on the primary adapter.
o IX31659 - Description: HANFS DUPLICATE CACHE NOT HANDLED
PROPERLY.
o IX28332 - Specifying HANFS output can hang HANFS daemon.
o On a network with heavy NFS activities, you may need to
add "dupcachsize=1000" to /etc/hanfs file. 1000 should
be good for up to 8 clients. In general, add 1000 for
every 8 clients. This will increase the number of
records the NFS server can cache for duplicate NFS
requests from clients.
NOTES
+----------------------------------------------------------+
| |
| Fixes (PTFs) for AIX 3.2.5 and later can be downloaded |
| via Internet with the FixDist service. For FixDist |
| information and instructions, order fax number 1228 from |
| 1-800-IBM-4FAX. If you don't have access to Internet or |
| if your machine is at a pre-3.2.5 AIX level, you can |
| request a specific fix number from 1-800-CALL-AIX. All |
| other services from 1-800-CALL-AIX which are not Program |
| Services require a software support contract. |
| |
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+----------------------------------------------------------+
| |
| If you work with AIX support on your problem, it is |
| useful for you to provide the following: |
| |
| o HANFS logfile that may capture the output of the |
| error causing the problem. |
| |
| o Small topology for your HANFS setup. |
| |
| o How to recreate the problem. |
| |
| For information on support available from the AIX |
| Support Family and Program Services (IBM's base support |
| for code-related problems), request these faxes from |
| 1-800-IBM-4FAX: |
| |
| 1537 Overview of AIX Support |
| 1760 Using Program Services |
| 2464 The AIX Support Family |
| |
+----------------------------------------------------------+
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END OF DOCUMENT (hanfs.help.tcp, 4FAX# 2543)
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